Document.write()

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document.open()에 의해 열린 문서 스팀에 텍스트 스트링을 적는다.

주: as document.write writes to the document stream, calling document.write on a closed (loaded) document automatically calls document.open, which will clear the document.

구문

document.write(markup);

매개변수

markup
document 문성에 씌여질 텍스트를 포함하고 있는 스트링.

<html>

<head>
  <title>write example</title>

  <script>
    function newContent() {
      alert("load new content");
      document.open();
      document.write("<h1>Out with the old - in with the new!</h1>");
      document.close();
    }
  </script>
</head>

<body onload="newContent();">
  <p>Some original document content.</p>
</body>

</html>

Writing to a document that has already loaded without calling document.open() will automatically call document.open. Once you have finished writing, it is recommended to call document.close() to tell the browser to finish loading the page. The text you write is parsed into the document's structure model. In the example above, the h1 element becomes a node in the document.

If the document.write() call is embedded within an inlined HTML <script> tag, then it will not call document.open(). For example:

<script> 
  document.write("<h1>Main title</h1>") 
</script>
Note: document.write and document.writeln do not work in XHTML documents (you'll get a "Operation is not supported" [NS_ERROR_DOM_NOT_SUPPORTED_ERR] error in the error console). This happens when opening a local file with the .xhtml file extension or for any document served with an application/xhtml+xml MIME type. More information is available in the W3C XHTML FAQ.
Note: document.write in deferred or asynchronous scripts will be ignored, and you'll get a message like "A call to document.write() from an asynchronously-loaded external script was ignored" in the error console.
Note: In Edge only, calling document.write more than once in an iframe causes the error SCRIPT70: Permission denied.
Note: Starting in 55, Chrome will not execute <script> elements injected via document.write() in case of an HTTP cache miss for users on a 2G connection.

사양

Specification Status Comment
HTML Living Standard
The definition of 'document.write(...)' in that specification.
Living Standard  
Document Object Model (DOM) Level 2 HTML Specification
The definition of 'document.write(...)' in that specification.
Obsolete  

브라우저 호환성

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
writeChrome Full support 1Edge Full support 12Firefox Full support 1IE Full support 4Opera Full support 3Safari Full support 1WebView Android Full support 1Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support 10.1Safari iOS Full support 1Samsung Internet Android Full support 1.0

Legend

Full support  
Full support

See also